I made sure to read the reviews before buying and what is true is that the thermals are a little big BUT it didn't bother me. My baby is growing up and I just tuck in my waist and we move on! If you are looking for the perfect fit or more of a true thermal fit (like leggings) then I would suggest going down a size or maybe even 2 to get a true thermal fit again. First, if you don't wash it before wearing, it will bleed!